7138145135 has 12 divisors (see below), whose sum is σ = 9415273224. Its totient is φ = 5191377840.

The previous prime is 7138145123. The next prime is 7138145137. The reversal of 7138145135 is 5315418317.

It is not a de Polignac number, because 7138145135 - 2⁸ = 7138144879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138145137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5898689 + ... + 5899898.

It is an arithmetic number, because the mean of its divisors is an integer number (784606102).

Almost surely, 2^7138145135 is an apocalyptic number.

7138145135 is a deficient number, since it is larger than the sum of its proper divisors (2277128089).

7138145135 is a wasteful number, since it uses less digits than its factorization.

7138145135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11798614 (or 11798603 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 7138145135 is about 84487.5442594943. The cubic root of 7138145135 is about 1925.4332086244.

The spelling of 7138145135 in words is "seven billion, one hundred thirty-eight million, one hundred forty-five thousand, one hundred thirty-five".